Vacuum-radiator valve



June 24, 1930. E- F @ONNELLY 1,757,056

vacuum RADIATOR VALVE Filed oct. 2S, 1927 Patented June 24, 1930 UNTEDSTTES PAT VACUUIYLRADIATOR VALVE Application :filed October 28, 182'?.

This invention relates to an improvement in vacuum radiator valves, andhas for its object to provide a valve ot the character set forth whichwill be simple in construction and effective in its operation, the valveembodying therein a spherical valve member adapted to operateautomatically to permit air to escape from the valve, to prevent airlfrom entering the valve and to prevent steam from escaping from thevalve.

Another object of the invention is to provide a means for preventing themovable valve member and valve seats with which it co-operates, togetherwith the passages leading to the valve seats, from becoming clogged withimpurities, such as, particles ot rust, dirt and grease, which may becarried by the steam into the valve.

The invention consists in a valve as set zo forth in the followingspecification and particularly as pointed out in the claims.

Referring to the drawings:

Figure 1 represents a rear elevation of a valve embodying` my invention.

F ig. 2 is a central vertical section taken on the line 2-2 of Fig. 1.

Like numerals refer to like parts throughout the several views of thedrawings.

In the drawings, 5 represents a casing comprising a base portion 6 andan upper' portion 7, the latter being secured in any suitable manner tosaid base portion within a recess 8 which extends downwardly from thetop thereof, said recess being shouldered at 9, thereby forming a seatupon which the casing member 7 rests. The base 6 is, furthermore,provided with an externally threaded arm 10 having a iiuid passage 11extending therethrough and communicating with the recess 8.

Located at the top of the casing member 7 is a nipple 12 having apassage 13 extending therethrough. A nozzle 14 is detachably secured tothe portion oi' the nipple 12 which projects above the top of the casingmember 7, and ports 15 provided in opposite sides of said nozzlecommunicate with the passage 13. The portion of the nipple 12 that islocated within the interior 01' the casing 5 has a sleeve 16 attachedthereto and Serial No. 229,322.

said sleeve has a valve chamber 17 provided upon the interior thereof. Avalve seat 18 is formed at the lower extremity of the nipple 12, saidseat being formed at the intersection of the passage v13 and lowerextremity of the nipple 12, and in like manner, another valve seat 19 isformed at the lower extremity of the chamber 17 where said extremity isintersected by a passage 21. A port 22 provides communication betweenthe passage 21 and the exterior of the sleeve 16.

Resting upon the shoulder 9 of the base member 6, above the recess Stherein, is an inverted cup-shaped member 23, in the sides of whichapertures 211 are provided, in order that air and steam may circulatethrough the valve. lhe function et the inverted cupshaped member 23 isto intercept the dirt and. other impurities that may find their way intothe valve from the radiator through the passage 11. rlhe cup-shapedmember 23 is prevented from lifting from shoulder 9 by a pin 25, thelower extremity of which engages the upper surface ot the member 23.

As an added protection in preventing impurities from reaching the valvemechanism, a baille plate 26 is also provided interposed between theinverted cup-shaped member 23 and said valve structure. The baille plato26 is held in position against the lower extremity of the sleeve 16 bythe pin 25 which is in turn mounted in said sleeve, being secured at thelower extremity of the passage 21 in which it has a force ht.

The general operation of the valve hereinbefore specifically describedis as follows Assuming that the valve is attached in the usualwell-known manner to a radiator and there is a pressure of steam withinthe radiator, said steam will act to force the spherical valve member 2Oagainst the seat 18, closing the passage 13 and thereby preventing thesteam from within the system from being/discharged through the ports 15to the atmosphere.

1When there is no pressure of steam within the radiator and system, thespherical valve member 2O will fall by gravity and rest upon the valveseat 19, closing the passage 21' and preventingair from entering theradiator and system. if, on the other hand, there is air within theradiator to the extent that said air prevents the efficient circulationoit' the steam through the radiator, said air will canse the sphericalvalve member 2O to rise slightly from the seat 19, allowing the same topass by the spherical valve member and upwardly from the valve throughthe pas sage 13 and ports 15 until such time as said air is removed fromthe radiator, whereupon the incoming` steam entering the radiator willagain torce the valve member upwardly and close the passage 13.

The function oit the inverted cup-shaped member 23 is to intercept theimpurities which enter the valve from the radiator' through the passage11 and a large percentage of these impurities will be confined withinthe interior oi the cup-shaped member and recess 8. A very smallpercentage, however, of impurities may pass through the apertures 2% andto prevent `these impurities `from reaching the valve mechanism thebaille plate 26 is provided, said plate being,` constructed and arrangedto intercept such impnrities and prevent their reaching the movablevalve member and its seats.

claim:

l. A vacuum radiator valve having, in combination, a casing providedwith a passage adapted to communicate with a iiuid circulating` system,a nipple mounted in said casingl and provided with a port communicatingwith the atmosphere, a sleeve attached to said nipple and co-operatingtherewith to term a `{iuid chamber, a movable valve member within saidfluid chamber and adapted to close said port, an inverted cup-shapedmember interposed between said passage and movable valve member tointercept impurities ente ing the casiniy through the passage, meansdepending from said sleeve to engage said cnpeshaped member and preventthe same Jrom lifting` from above the inner extremity of said passage,and al baiiie plate attached to said sleeve and intercepting' impuritieswithin the casing, whereby they are prevented from reaching the valvemember.

2. A vacuum radiator valve having, in combination, a casing providedwith a passage adapted to communicate with a Afluid circulating system,a nipple mounted in said casing and provided with a port communicatinowith the atmosphere and having' a valve seat formed thereon, a sleeveattached ip seid nipple and co-operating therew' to form a fluid chamberand provided with a valve seat thereon, a spherical valve member withinsaid fluid chamber and adapted to engage either ot said valve seats, aninverted cup-shaped member interposed between said passage and sleeve tointercept impurities entering` the casing through the my hand.

EDl/TARD F. DGNNELLY.

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